Home / 145,077.26-200,226.17-81,418.55

Finding the Fourth Proportional to 145,077.26, 200,226.17 and 81,418.55

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Solution

The fourth proportional to 145,077.26, 200,226.17 and 81,418.55 is: 112,368.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,077.26 : 200,226.17 = 81,418.55 : x
  2. Step 2: Convert to fraction form
    145,077.26/200,226.17 = 81,418.55/x
  3. Step 3: Cross multiply
    145,077.26x = 200,226.17 × 81,418.55
  4. Step 4: Simplify right side
    145,077.26x = 16,302,124,433.45
  5. Step 5: Solve for x
    x = 16,302,124,433.45/145,077.26
  6. Step 6: Final answer
    x = 112,368.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.